Although we are not Aldi regulars, we've done enough shopping there at least on a cursory basis to know a few things - most notably that the majority of their housebrand goods are simply repacakged, private label versions of precisely the same things you'll pay full price for at the 'regular' grocery store. In fact, at one point, someone in my family had a list of which items were actually made by what major vendor - especially the dry goods, such as cereals, rice, things of that nature - that come right off the same line as the "regular" stuff, they just switch out the boxes/bags in the packaging/dispensing machines.
The post a few replies back about the mom who stuck the Aldi-branded Cheerios into the Cheerios box and her kids never knew the difference was pretty telling. And a bit of indictment how much we all (myself included) get hooked on the packaging and impute a difference in substance that just isn't - at least in many or most cases - really there.